Pen



FIG. 1 is a perspective view of a pen of my new design;

FIG. 2 is a left side elevation view of the pen of FIG. 1;

FIG. 3 is a right side elevation view of the pen of FIG. 1;

FIG. 4 is a front elevation view of the pen of FIG. 1;

FIG. 5 is a rear elevation view of the pen of FIG. 1

FIG. 6 is a bottom end view of the pen of FIG. 1;

FIG. 7 is a top end view of the pen of FIG. 1; and,

FIG. 8 is an exploded view of the pen of FIG. 1 showing a cap thereof removed.

The broken lines in the drawings are included for the purpose of illustrating unclaimed features and form no part of the claimed design. 

CLAIM The ornamental design for a pen, as shown and described. 